B0770 2018 Chevrolet Silverado Code - All Wheel Drive Indicator Circuit
Quick Answer
The All Wheel Drive (AWD/4WD Auto) indicator circuit consists of a Light Emitting Diode (LED) feed circuit, a LED, and a LED control circuit. Common causes include Faulty Transfer Case Select Switch, Transfer Case Select Switch harness is open or shorted, Transfer Case Select Switch circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- B0770 2018 Chevrolet Silverado indicates All Wheel Drive Indicator Circuit.
- Common causes
- Common causes include Faulty Transfer Case Select Switch, Transfer Case Select Switch harness is open or shorted, Transfer Case Select Switch circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code B0770 2018 Chevrolet Silverado Description
The TCCM tests the AWD indicator circuit for unexpected voltage by monitoring the B+ supplied by the BCM on the indicator dimming control circuit by grounding the AWD indicator control circuit for 2 seconds during the Bulb Test at key ON.
What are the Possible Causes of the DTC B0770 2018 Chevrolet Silverado?
- Faulty Transfer Case Select Switch
- Transfer Case Select Switch harness is open or shorted
- Transfer Case Select Switch circuit poor electrical connection
- Faulty Transfer Case Shift Control Module (TCCM)
How to Fix the DTC B0770 2018 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B0770 2018 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the B0770 2018 Chevrolet Silverado code?
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Frequently Asked Questions about B0770 2018 Chevrolet Silverado Code
1. What does OBDII code B0770 for a 2018 Chevrolet Silverado indicate?
The B0770 code specifically relates to the All Wheel Drive Indicator Circuit in the vehicle.
2. What are some common symptoms of a B0770 OBDII code in a 2018 Chevrolet Silverado?
Common symptoms include the all wheel drive indicator light not functioning properly or being stuck in a certain position.
3. What are potential causes of the B0770 OBDII code in a 2018 Chevrolet Silverado?
Possible causes include a faulty indicator switch, wiring issues, a malfunctioning indicator module, or a problem with the vehicle's control unit.
4. How can I diagnose the B0770 OBDII code in my 2018 Chevrolet Silverado?
Diagnosing the issue involves checking the indicator switch, inspecting the wiring for damage, and testing the indicator module and control unit for proper function.
5. Can I continue driving my 2018 Chevrolet Silverado with a B0770 OBDII code?
It is generally safe to drive the vehicle with a B0770 code, but it is recommended to have the issue diagnosed and repaired as soon as possible to ensure proper functionality.
6. How can I repair the All Wheel Drive Indicator Circuit issue causing the B0770 code in my 2018 Chevrolet Silverado?
Repairing the issue may involve replacing a faulty indicator switch, repairing damaged wiring, replacing the indicator module, or addressing any issues with the control unit.
7. Is the B0770 OBDII code in a 2018 Chevrolet Silverado a serious problem?
While the issue may not directly impact the drivability of the vehicle, it is important to address the underlying cause of the code to ensure all systems are functioning correctly.
8. Can I reset the B0770 OBDII code in my 2018 Chevrolet Silverado without fixing the underlying problem?
Resetting the code without addressing the root cause may temporarily turn off the warning light, but the issue will likely reoccur until properly repaired.
9. How much does it cost to fix the B0770 OBDII code in a 2018 Chevrolet Silverado?
The cost of repairing a B0770 code can vary depending on the specific cause of the issue, but it may involve parts and labor costs for diagnosis and repair.
10. Will fixing the B0770 OBDII code in my 2018 Chevrolet Silverado improve fuel efficiency or performance?
Fixing the All Wheel Drive Indicator Circuit issue causing the B0770 code is unlikely to have a direct impact on fuel efficiency or performance, but it will ensure the proper functioning of the indicator system in the vehicle.
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